The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 22, 1994
Filed:
May. 17, 1993
Hisaharu Yanagawa, Tokyo, JP;
Takeo Shimizu, Tokyo, JP;
Shiro Nakamura, Tokyo, JP;
Ken Ueki, Tokyo, JP;
The Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
A method of connecting an optical fiber to a planar optical waveguide is provided in which an end face of a waveguide chip in which planar optical waveguides are formed is abutted against an end face of a fiber aligning jig on which optical fibers are arranged, to thereby connect the optical fiber to the corresponding planar optical waveguide. At least one marker is formed in each of the waveguide chip and the fiber aligning jig, and also at least one pin guide groove is formed in each of the waveguide chip and the fiber aligning jig, using the marker as a reference mark. The markers of the waveguide chip and the fiber aligning jig are aligned with each other along optical axes of the planar optical waveguides when the waveguide chip and the fiber aligning jig are abutted against each other. Further, fiber guide grooves are formed in the fiber aligning jig, using the marker as a reference mark. The waveguide chip and the fiber aligning jig are abutted against each other, and the planar optical waveguide and the optical fiber are aligned with each other by means of a common guide pin laid along the corresponding pin guide grooves.